When does differentiation begin in a human embryo? day 4-5 day 10 day 25-26 day 50

While the average human is able to hold his or her breath for approximately one minute, a whale can dive for over 30 minutes without returning to the surface.

True or false An object that has energy can do work.

Is it possible that the carbon atoms in your body may have once made up the living tissues of another person or animal in earlier times? this is impossible since carbon can't enter a living system more than once. possible only if you are a cannibal.

How does habitat destruction affect biodiversity

What evidence must be considered when determining whether or not a trail is adaptation?

Which system and rationale best pairs with the musculoskeletal system to ensure fluid movement of the human body? 1. the digestive system, to obtain the energy that is needed to move the muscles with smooth, coordinated effort 2.

What is a weak, temporary bond

Why does the need for living space cause problems for some organisms?

Name two factors that will determine whether a non native species becomes an invasive species

Soaps, by themseives, are examples of a. surfactants. b. degerming agents. c. antiseptes d. both a and b.